Stapling device



y July 2o, 1937'.`

w. 3.y PANKoNlN STAPLING DEVICE Filed June 21, 1954 n 4 sheets-sheet .1

` STAPLING DEVICE 1 Filed June 21, 1934 f4 sheets-sheet 2 y.

July 20, 17937. I w. G. PANKoNlN 2,087,779

STAPLING DEVICE Filed June 21) 1954 4 Sheets-Sheet-3 PatentedJuly-20,1931 f 2,0873@ UNIT-Ep .STATES `z.oa7,'i7a `i srsrnmonnvrcnyWiliam G. rahxohih, chingo, m.

Application `June 21,' 1934, No. 731,609

zzcmms. (oi.l13)` The present invention relates to stapling Ade- 'Anovel follower for staples consisting lof a vices in which 'preformedwirestaples adhesive-y staple following member and the'handle,v theIyattached to one another are employed. latter providing a stop for thestaple engaging Among the objects of the present invention are means andaspring anchor; f the provision ofthe following: l An unique staple.driving plunger towhich the 5 Aplurality of stapiing deforming diesthat are staple drivingtool is attached, the plungerfberelativelymovable to one' another to` provideza ing positioned andmalntain'edinthe housing. by number of different deformations for. thestaple providingoutout sectionsv which engage'. a stop driventhereagainst; v 1 member in said-housing; f

l0 Novel relatively movable independent staple de improvedl means forattaching l'ax staple 10 `3:,- A stapling housing regulatingmemberhaving forming anvil dies and meansfor locking said driving plunger to astaple drivig member; y dies in a selectedposition to provide aplurality Ari-unique means for guiding the staple drivof predeterminedstaple deformations; i y ingvtool in a selected path in the housing;

An unique connecting means between-the base Novelmeans 'for guiding yaspring in alhollow i.: and beam of a staple device including novelstaple drivingzrnember; 1 15 spring holding means; v Unique means forsecuring a staple'driver A novel means for regulating the angularrelaspring guide vto a beammagazine; and.. tion of the movable beam of astapling device to A novel means for packing a staplev follower the baseonwhich it rests, andphaving separate spring'usable in positioning saidsprin'g in .the 2g means adjustable to provide positive'limitationsmachine to replace va broken or defective, part. 20 of differentmagnitudes in respect to the move- These objects andl suchother objectsas may ment of the beam; l hereinafter appear are obtained by thenovel Anovel combination of connecting means and construction, improvedarrangement, and unique fill-sii: regulating means between a StB-IllingIna-f combination ofthe parts shown Vin theA embo'di- 1 chine base andthe staple carrying beam .theren ients/ofv the .invention iiiustratedinthe'aceom- 25 011; f 1 panvingV sheets` of drawing hereby madea partNovel beam-construction to provide a riservfor. of Vthis specificationand in which# n 1 regulating the anguiarxmovemeiii 0f .a magazine yFigure l is alongitudinal section through a beam: Y machine illustratingone form of the invention;` i

gg An improved housing of novel shape and con- Figure 2 is a horizontalsection of the device 30 i i struction for enclosing a staple drivingplunger shown mi Figure 1 on the une 2 2 of Figure 1.; and staplemagazine end; a a A An achustabie housing body with lmeans for ofigeslsa Vertical Semo!! im the/liggsa tightening it about a staple drivingplunger: Figure 4 isY a emu m blanvew of the'nm dies shown in Figure l;35 Figures 5,` 6, and '7 illustrate, infsideview,

staples deformed in-v said anvils when indifferent adjustable meanswhich .also serves as a stop for the staple driving plunger;

An unique arrangement of the staple driving positions; y, y l

4 o grigxf gdpgfi e nzi fgilll? 1e driving Figures 8 and 9 illustratetop andv end yViews of 401.'

` An unique arrangement of wings on a staple afigxg g'sleobtained byanother -1 995Mo I o I l j artigiani;- sixinsamizrssie Figures 9a 91 ascomprising .a core about which the spring is thei`iapies withdeformations Possibie with ih?" 45 wound,P akey providing a transversesupport Diesem" Sta'pimgdevice; 45 therefor, and interrelationed partswhich main- Figure lois a Pian View 0f a Stpiefobtainable tain thespring core in position so long as 'the' by aniiihei Setting Ofthe'dies:l f Spring is operable; Figure 11 is a fragmentary detail, in planpof Anunique spring core and key providing ready a modifie@ anvil Seat? 5cdetachment of the spring when broken. and firm Figure 12 is a transversesectional detalle! a.; 50 attachment so long as the spring is active;modied attaching means for, use Vin the. seat An uniquereadilyreplaceable follower and ShOWn ih figllre 11; f spring which maybe inserted into position with Figure -A13 1is'a1detailsimilarY toFigurelZ butt out the use of tools and which may be positioned with theseat partly circular and partly octagf' 'the magazinespring; .K Figure30 is a detail, in side elevation of a f Figure 14 is a bottom plan viewshowing a detail from the line IIL-Il of Figure 1;

. Figure 15 isa side elevation of.one form of core whichl may beemployed as a part of the magazine beam in the present device;

Figure 16 is a transverse section of the beam shown in Figure 15 andtaken on the lines vlI--IG ,of said Figure 15;

Figure. 171s a similar view of a different. core showingA the looselydisposed riser illustrated ln Figure 1` in transverse section;

Figure 18 is a similar view of another form of beam. having a riser inrigid connection therel Y housing for the 'staple driving blade;

VFigure 24 is a side elevation oi such staple driving blade guide; i f

Figure 25 is a fragmentary transverse section of the device illustratedin Figure l1 such view illustrating the spring for the -staple drivingmember, the guide therefor, and the manner of connecting the lattertothe beam magazine;

Figure 26 is a horizontal transverse detailof the top of the magazinebeam showing the notches therein to receive the rstaple driver springguide; A i

Flgure`27 is a plan view of ing the finger pieces, stop and springanchor on the magazine follower; u n

Figure 28 is a detail in plan view of the inner end ofthe magazinefollower spring;

Figure 29 is a plan view of the core for coiling coiled magazinefollower spring, thecore therefor, and the yoke thereabout the'followerattached to said spring being in fragmentary vlongitudinal section; y A

Figure 31 is a transverse section on the line 3i3i ofFigure 30; Y a

Figure 32 is a fragmentary transverse view,l

with parts brokenaway, of' the front end of the magazine showing thestaple cutting up 'structure; and y' l v Figure 33 is an end view ofthemagazine shown in Figure 32.

Like reference characters are used to indicate similar parts in thedrawings. and inthe description which follows.

The illustrated machine and modications comprise a base, a beammagazine, connecting means therebetween, a housing at the free end ofthe-beam, a staple driver in the housing,` and a staple follower ridingin the magazine and actuated therealong rby spring means; In 'respect toeach of the several members named, parts of the structure are novel andnew.

For convenience in describing theillustrated embodiments of theinvention, this specicatlon has been divided, as far as practicable, toseparately describe as -units the' various parts named.v

The co-relation of such'parts willbe set up as the description proceeds.o

the blank for form- The base A base 2l of an inverted dish type isprovided. It has a substantially continuous supporting edge or flange20a. A number of apertures are formed therein for mounting anvil dies.magazine guide 25 plates and an angle regulating member, and forthemovement of a riser therethrough.

At the front of the base 2l are twov rotatable anvil dies 2i, the axisof rotation of each die being concentricl with ,the axis of the leg of astaple which is dischargedthereagainstfor deformation. These anvils arefurther defined and claimed in the copending application Serial No.103,981,v led by the applicant herein on October 15,1936. Each die 2|has Aa radially disposed `clinching seat 22, a clip section oi' which isaxial of the staple leg to be deformed thereby. 'I'he seat `22 isslightly longer than the radius of the me 2 y Each rotatable anvil die2|k may be-adjusted to a plurality of positions. For example, theelongatedfradial seats 22 in the two `dies maybe arranged in alinement.-Either'seat may be rotated relatively to the other so that the twoseats may be positioned in afplurality of angles. y Bothseats v22 maybe'shifted with equal facility.4 The positions obtained vby suchadjustments vprovide a `variety of staple deformations such Vas areillustratedin the drawings.` f

inwardly, the staple visl deformed by turning both legs under the bridge`(Figure 57T; if one seat 22 points to the front and the other vseat 22points to the `rear of "the machine,l the result will be a Z-shapedstaple such' as is shown in Figures 8 and 9; if the seats are inalinement but pointed outwardly the result will'be an elongated'memberwhich may be readily withdrawn from the stapled papers in 'eitherdirection as is illustrated in Figure 16; if one seat 22 is pointedinwardly and the other outwardly while the two are in alinement. then ahook ended staple such as is shown in Figure '7 is obtained; two' otherdeformations intermediate the form shown in VFigures 8 and l0 are shownin Figures 9a and 9b; and when both seats are pointed outwardly and inparallelism but not in alinement, the result will-,be a' readilyremovable staple of sinuousccni'iguration such as is shown in Figure 10.Other results may be obtained by adjustments different from thosehereinabove suggested. l

The staple driving arm may be'. detached from 4the base so that it maybe employed as a tacker the anvil at the top and the'sleeve 25 atthefbottom of the base in a readil'yrotatable manner. The' screw 2l isforced home only so far as is necessary to maintain the parts inassembly without undue frictional binding of the yanvil yand sleeveuponythe base 20.

To the rear of each notched sleeve 2l and betweensaid two sleeves, as isillustrated inFigures 1 and 4, there is an L-`shaped anchor 21 which ispivoted to theunder side of the base 20 by a rivet 28 or the like.Secured tothe anchor 2l and extending to each side of the longitudinalA7s v v 30 If-theseats 22 are in alinementand pointed l 2,087,779 centerline' o! the base 22. is a spring' 29 which has two V-shaped ends 3 0,each end 30 engaging in a notch 26 in sleeve 25 to hold the sleeve 25and the anvil 2| vkeyed thereto against accidental rotation. f

When desired, the relative positions o! the two anvils 2|, or either ofthem, may be modified gral partloftne base of the anlvu die er suitabiyattached thereto. The shank 32`terxninates in a threaded section 34. Theaperture 32`in the base 20h to receive thebctagonal shank 33and threadedportion`34 may be wholly octagonal as shown in-Figure 11 or itmaybemodifiedv to have a circular section for the threaded member and anoctagonal seat for the 'octagonal member. (Bee Figure 13.) l

At the end oi' the threaded section 34therei's s. wing nut 35 andintermediate the engaging face v of-the wing nut 35 andthe base Zlib,'there may be a washer 35a of suitable character. 'The anvil 2lb isdisposed in the octagonal aperture 32 with the staple deforming seat 22Din the anvil 2lb in a 'selected position. 'frightening of the wing nutI5 on the threaded'section. 34 rmly seats the anvil 2|b against rotationor displacement until a change inadjustment is desired.

At the other or rear end of the base .2Il'i's a suitable aperture 36 fora riser engaging an angle regulating lever in the underside of the base20. Such angle regulating 4lever is to provide a selected normalposition for .the magazine beam when, at rest. A centrally disposedaperture 8111s lalso shown inbase 20 Vfor a pivotinganchor bolt 46 uponwhich is a lever 48for modifying the angle of the rest position .o f thebeam. LA plurality of ball seats 38,39 and 43 for the pressed outportion .51 of the lever 48 are formed in thebottom of the base. Anumber of slots 4| (see Figured) are formedin the baseto receive tongues42 }in side plate members 43 between which a magazine beam ls oscillatedin the discharge df, a staple from the device and in the return of the`bean; to a position of rest. .A 1

It will be noted `that the side members 43 vare parallel and'that eachis firmly anchoredinthe base 20 by riveting the tongues 42v projectingthrough the slotslin the lapertures 4|. y'1."ln'ough the base 28, there'extends, in the aperture 31. the anchor bolt 46 which'hasa head 41 vof.which is disposed beneath` the lever 48. Between the head 41 and theshank 4S of bolt 46 is an enlarged portion 50 about which "the` lever,`48 `slidingly rotates. y i

In the shank 49 is a circumferential groove Al'or the reception ofaU-shaped spring 52 vthe legs .of

which areseated in the groove 5| and are locked in position therein' bycomplemental notchesi53, one of which is in each ofi such legs.

YThe aperture 3B inthe base 20 is'for'the 'depending' riser (6B or `61)g in" the' magazine' beam, 1 and is e! a` size andshape' insuring thatthe material of the baseywill'notinterferewitl` the free movement oi theriser therethrough as the magazinebeam is lowered and raised.

on meander side of the base zu and pivote@ on bolt 48 isthe lever 48which is oscillated about tudinal alinement Aclockwise fromsuchalinem'ent with said `baseto `a; six nilar angular but `opposed j.-

position."v

`At the fro toi the-lever are three steps 5.4, 55 vs`x.n i '5|i,'e'ach.`infa. different horizontalplane relativeto'the planeothetopoftlie'base:211.:V At* 1 the other end of th lever 4 8isaypresse'dfoutseniilspherical section 5 1 resembling., a segmentofythe'3f such pivotbolus in horizontm parallelism fwith f the base 2|). Suchlever 48 is movablelfrom' longiperipheryV of a ball.` VAtfthe entreme.rear end .of

lever y48-.is a bent over L section whichwforms -a hanane-.sa f orthemanlpulauongoftne ieve'rju .from any one off-its several positionstoanother In thebase 20, one of A theithree ballseats 38,r

` 39 and,.40,..receiv es the' pressed-out section 51 `ofthelever; 48 tofirmly but displaceably position said; lever lso ,secured byregistration'- of .section 51 .with:on`e' o f said seats,I the51eve'r48y presents one of the steps 54, 55, or 56,1120 the riser (65 or 61) tolimit upwardmovement offthe magazine beam under theurge of a'springresting on said base andlater to bedescribed. when registered in` the'second of 'such-positions' the lever presents another of said steps to'the l-riser'toallow'urge of the 'beamto a diil'erent yangularpositiomand whenfthe riser isfreg'lstered with 'the third of, saidseats, the third step registers with the riser to limit movement of thebeam under such spring urgetov a-third angular position.

The machin screw or boltj46 'on' which the' lever 48 is pivotedis so.held inthe' base by W springA 52 that; 'sli'glit relativel movement"of;v the lever`48 `away from thef plane `of'fthe base 28 lmay be had toadmit of the shiftingpf the' lever 48 to the three"'.posi tionsdescribed` .byfpressing -uponthenaadlessxi 1 -In the present device, anyBeam ma@ aZine'maybeuSedJ `It has been..convent iona l `heretoforetoemploy 4botlrsolid .cores and hollow coresfor suchgbeamsthe latter beingmade from a piece of channeliron orsteel-in complemental x relation .totheoutermember .oi the* beam;k In the present device either of vthese yconstructions may be addition, the-apparatus flends' .itself to'usejwitha'laminated core describedin f a co-pending applicationi'Serial=1;No.f741,658. vfor Lettersk Patent iiled .Augustj 27,` $1934 in thenameV -ofWilliam F. Weber. and Ientitledf Stapling machine core.r` j i -v s Thebeamv s When a. solid corelis used, it 'cutaway as shown in Figure l5 toprovide :large lholes orv slots 58 and 6 3 tirereinto A,lighten-theweight of.

the core." When such core comprises laminations of metalsuch ilarpurpose.

the 'cm-either a; manna members; or .side

aperturesiare provided forasim v 'I'he magazine" beam comprises, inaddition-.tooo

employed fit. hasl inturned 'top flanges;vvhichl are spaced.` apart,yat.v least` the" major". length "of the' beam to admit of `the passageof; a staple folvl lower l along the magazine. 'designated 84a in Figure.18. Similarilanges f on L-shaped side ,members 6 5 are designatedAsillustrated, the beam shown in ,Figures 15. andv 16 comprisesside.members.55,verticalcore immenses so, "si, s2, anasafanaspacer sepag between .f the laminated core and the side mem-' bers 65, the wholebeing heid in assembly-fav Such ang'es are dowels 59 and rivets 1|. A 66is shown vin Figure 15."

Such riser comprises a ilat ,b`ody 95 `having space 58 for the lanapertured end 96 formovelment 'about a'pivot,

and a; s tirrup :91' which rides freely in theaperture 3 6. At the endof the stirrup 91 is a. hook -swhichengages one of the steps 54; 55 or58 l e Vto" limit upward movementfof'the 'riser' under the linfluence ofcoil spring 99surrounding-the stir- 'rup 81^and resting upon thebase 20adjacent and about aperture 3E'therein, the opposite end ofthe baseengaging 'the under sideof the body of the riser to urgef it upwardlyabout its piv- -oted end 98. The side plates; 43 have extendingthe'rethrougha1bolt or rivet |80 on which-both the magazine beam andriser rock. vIn the form .of invention described, the riserand beam are.

relatively movable so that the beam 'rises with theriser under the urgeof spring 89 to afpositlon of rest from which it may be .angularly movedupwardly if and When desiredwithout disturbing the position oftheriser.r

- `In Figurel'l, theriser 8E is illustrated with a. different form ofcore comprising aninverted channel member 19, laminations 15, 16,l 11land 18, and side members GS joined'by rivetsv80 and 8|, the beam beingmounted on the base 20 in a manner-identical with that ofthe previouslydescribed beam.I In the channel member 118 are ears I (Figures 1 and 17)comprising tangs that are Vstruck down `from the `inmaterial ofthelowermost 'strip of the coref .'Iihelears or tangs 50| are closelyadjacent each side of the r`riser 86 and limit'move'ment of the riser,l66 axially of the pivot member |00.' The ears or tangs vlll! f thusprevent movement of 'the riser 66 Atoward one'side yof' the longitudinalcenter line of the base. In such forni of riser a cut-out..

lilir 0 shown in Flgure'1'5 is necessary. Y Y l In the beam structureshown in FigureslS, 19 andi20jthe riser 61 is heldjrigidly in the core.In such formof beam, ythe beam includesthe channel 64 with /iriturnedflanges `S4a,fvertical laminatiOns82, 83, 84 and 85,' vertical sidepieces l 8S and iayandscrews 81. In ajslot'therefor is ariser G1comprising abody |021), tangs` |031) to be riveted in Vcomplementalslots in the Vchannel 64, aperturesl |0411 :forscrews 81, a stirrup`|0513, and Ya boot 10617. :The boot |065 kicks.

against one of`step s 54, 551er 56; to'positively limit upwardmovement-- of ythe'ibeam.A `The channel has wings 89-apertured at90 toreceive the shank of pivoting member |00 insertedthrough and lockedinside plate 43.

The inturned flanges on the side members 85 and the'chan'nel 66 allowstaples to ride von the beamj Without displacementand free from unduefrictimif.v "The spacing of the inner; edges of 'flanges sa@ andsspermits of free riding ofthe staple follower upon any of the beamsdescribed. At the front of the beamA the channel member 64 or the sidemembers terminate'at their topslin end parallelismwith the core toprovide a staple path betweenthe iront wall of a housing tobe securedthereto Vand thefront end ofthe maga- A zine anchored therein, therev,being side extensions of said members forming .the side .Walls of thechute dening the end walls'lof such staple path as shown in Figure 26."f

Dowels `lta'or other fastening means are arranged at spaced intervalsalong7 the beam at its front VendgWhether Vcomprising fa,channel memberor two LL-shaped -members,` to holdin position'at such front of 'thedevice'a l'iousingforv thestapledriver and other parts. uchgdowel pins|02 a, of course, are below the path of travel of the Staples along" themagazine beam and are inserted-through apertures in ears |02c extendingor turned downwardly from the material of the L-shaped members or fromthe channel membertonreceive suchdovvels. f v

The housing foraine imple dnving' head 11 At the free end ofthe .beamisahousing 100.

`The` housing |05 m a`y comprise a single sheet of material suitablycut'to blank form and folded to provide `au'lJacent the top thereofandatits rear a housing for a springstaple follower. At

. its front the housing surrounds a staple driving Housing |05 comprisesa front |08 extending in asingle flat plane from the topfof the housingto 'the lower horizontal plane of 4.the beam 105g. Theflower section ofthe housing |05 extends rearwardly lengthwise of the beam |05aand ateach side thereof andis secured thereto by dowel pins 102 extendingthrough the skirts of thev housing and throughthe -beam as heretoforedescribed. -Sideskirts of the housing |05 comprise sections of twoheights, the lrear section |01 havingatop edge .below :thetop `ofthebeam |05a.

The remaining section |08 of theskirtvmay be of shortenlongitudinalextent. At its upper part sections |08 are bentinwardly to provide a.stop for a staple follower usedon they beam magazine |050.. Suchsections |08-.when foldedl in partly cover the beammagazine; Themate'rialfof thel skirts-|08 is so shaped thatit forms a shoulderedsection |09out of thepath of thestaple driver. The material of skirt |08may be' shaped vto provide'aguide for the staple driver |30 at the endof its down stroke.- l y i Above the shouldered section |09\(Figure'1)},there is aslot |0.-1Also above said shouldered (Figure 2)Whichvwithiwall"HI8-define the path of and guide the staple drivingplunger. Said walls III andf||2 are bentinwardlygto provide for theuppersection'ofthehousing a triangular horizontal-section." Thetriangular sectionfof" the' housing extends'upwardly tothe top thereof,terminating ina 'planetransverse to the movement of vthe staple drivingplunger therein.`

VProjecting fromthe inwardly-turned sections Hland ||2 of thetriangularhousing, there are parallel wings 'I I3 and I4.v These` extend rear-Wardly of thethousing'adistance substantially equal to therearwardextensionjof sections |01. The 4"Wings |3 and H4 as .theyrproje'ctback-` wardly slope downwardly at their top edges and together' theyform thejsjpring housing. The space between 'the' rearvvardly'extendingwings H3 and 4 may be covered las by the 4turning inwardly ofyextensions H54v andy ||6 at theftop edge of'thewings as'shown. The.extensions' I5, and ||8 are so formed that'spac is left for thefreepassage ofthestaple driver .in its movement up 'and down inthehousing. As shown the edges ofthe extensions'` ||5 and' I8 may.converge toywai-d the rear to leavej room atjthe front for a `housingadjustment jlat'er4 to be described.

intermediate thev wingsfl laand l u' adjacent the intersectionof'thesaid Wings with the oblique ingscrew lzswiui ahead |26 and a nut'|21, the purpose ofyvhich ris todrawthe wings ||3 and 4 togetheran'd .tothusltightenthe sections I| and 1 l.: ofthe housingabouethe ,stagnedriving plunger therein retake up waronfth'e staple 'if j .f e94.007,4179 `driving plunger orto stiirenfthemovement oftheA stapledriving plunger therein.

The body of the screw |25 yprovides a stop for limitingV the upwardmovement' of the staple` driving plunger andmay also limit its downwardmovementbut it is preferable to have-,theendof the plunger |30 stopagainst the inturned flanges Moor 05a of the side plates.` `The .stapledriving device is provided bythe housing y structure described withbearing surfaces in the top portion or the housingbythe parts 6,| and |2.and maybe supplied with further bearing parts vat the bottom of thehousing by the skirts |08 of the housing. There is no denite need `forthe lower skirtto serve as a guide forthe staplewdriving plunger becauseof the sufiicient bearing surface obtained by the use ofmembers |08, and||2 but, as indicated, may beso formed vas toprovide a. lower guide forsuch staple drivinghead. v

The sw driver '4 `f'lheataple driver or plunger |30 heretofore mentionedcomprises a body withthree sides, the

Y 1 front (|3|) and two obliquelydisposedsections (|32 and |33),dependent irom=.the iront |3 and bent toconverge at the rear'of-thedriver. The body ofthe driver |30 Ahas removed therefrom -'at |34 asmall transverse section at the front |3| thereof and extending into thesides` |32- and |33. 'Ihe removal o imaterial just described is to makeroom fora staple driving blade -guide |43within the housing land laterto -be mentioned. The driving plunger (Figure 2) has cut away sectionsat |35 and |30 at the rear edges of .thesections |33 and |34 toprovidetransverse shoulders |31 and |30 (Figure 1). On the up stroke of thedriver, the material thereof Vcontacts theadjustingscrew or bolt |25 atshoulder|31 so that: the

- adjusting screw is made to perform the function of providing a stopvfor the driver as well as vadjustment member for the housing. On thedown pressure of the 'driver when the-housing is spaced from the base2,0, the staplecarryingarm rst contacts the material to he stapled,thenthe driver descends driving the. staple until the end meets theinturned- -flanges 04a the hand or of the st. The end o1 the stapledriving blade |39 may be seated in a pocket in the handle |4| andthuskept in alinement lalong its upper section. It is securelyiastened tolthe front |3| of the triangular staple driving plunger |30 by a rivet|42 arranged intermediate yits length. Said blade is guided in a denitepath at its lower end by a staple driver guide |43; a

U shaped member extendingacross `the front:

ofthe 'staple driving housing.,

rMember-|43, Figs. '1.' 23 and 24, has two iegs |44 Vwhich haveextensions |45 which project through the front |05 of the housing andare riveted thereto, there being shoulders inteririedi-hk ate the legs|44 and extensions |45 todeilne the extent to which the' guide member|43 may be forced forwardly in the housing. The bridge of the guidemember |43 is out of the path ofthe staple driving vplunger |30becauseof the cut- 'away.section'|34v oi the latterat bottom'thereoi't-:Theblade member: |30 cannot rise above the limits of the staple-driverguide' |43 so that the stapledriver bladeis alwaysinfproper y alinementv with 4the iront' ofthe housing and staple driving plunger and isalways directed 5in `its downward Journey into 'apredetermined paththereforgbetweenthe'end-of the magazine .beam

alining the drivingtool to' enter v'the .staple chute formed: by thehousing',1 the; inside, pads. of` the Core. Rhea-already beenstatedii-.hat'tnefm ag 9,-

zine beamlis firmly 'securedinthe'houslng 'withy f.

a kkstaple track between thewiront 'of theU Abeam an'd lthel front |06;of the lhousing by-vdowls, screws,

or other fastening means-`j|lll-traversingthev beam andhousing. f

. .Opposedfnotchesiiliitliigures are 'formed intheouterfmagazine-memberfor the reception of a lguide foral spring 'andf to fretrac't' 'thestaple driving" pIungenQWhether such inemhervormembers-comprisethe'ILshaped'members cross arm |40 kthereofhavingftongues `I40-the'rel'- in; for interttingwith .thel-oppos'e'dnotches |40 in the outer -rnagazine member` or members.

` 00' or the channel 64.12,' Saidspringguideoom# f prises: ari-invertedT-'shaped member-"|41, the] Tongues |43 'need notibexrivete'd intopositioiriorl 7" the-tension of the spring thereoninsurs that the springguide position.;

ao win be maigitaineae.in anser; r

i rvSurrounding i the: stem.i |50 of T-shaped' extremityof thesspring|5| 'engages'thetop-of the cross armv |48 and the upper-extremity of thespring engaging the under side ofthe handle |'4|.

'I'he :spring guide |41- is so positioned that 'the 'e spring 1| 5| ismaintained vcoiicentricof the-staple driver plunger-'and clear oiatheadjustment screw for tighteningthe housing about thestaple drivingplunger. The guide1|41 cooperates with the stapledriving; member wallsto preventany. l buckling of thespring- |5|"'.when' the latter 'iscompressed on its'down stroke.' Slots 2|0 in the *"meansirorclearing thelower v-.prtion' of mem` ber |40. y*

:Thesiapie driving blade er teorias at' its iower endnormauy-isiustfabove thehorizonial path' o! thestaples on thefstaplebeam magazine; But

little movement ofthe blade is\ required tofeni gage the endstapledischarged from the maga-r` zine into the vertical staple path'fandtoenter the relatively clos'eiittingstaple andblade/path' between the endyofi-1 the beam'V magazinefthe housingfront lptheinside facevoi' -theside plates, and the` skirts |00.. No klargearn'ount of rforceis'necessary to drive the*staple's'ubstar'il tially the entire lengthyof'the pathfjust defined., When `the staple leg ends strike materialupon@ the anvils 2|, or the seats 22 Vin said anvilagreat'er drivingyforce is required, lrst to penetratethe l y* material on the anvil, andlaterto deform the 65 legs 'ofV the staple,` a-progressivefoperation. At

vthe time such greater force is required, the'ex-ltending sectionvofblade -|hasprgressed`well v down `the staple path n leaving amelativemshort sectionthereabOVi-y"` 'I A .member -hx'iv'ingraV generally'U-shapein x y cross section is disposed formovement alongthe` core andunder the guiding liniiuencey ofthe outerA V- magazine member oflmemberii. The frontsec- 45 lower edges of its sides=-|32 "and-"|33vprovide v thereof rides along the magazine in,l contact with therearmost staple to ydrive it infthedirection of the stapledriving .tool`or blade.--'f1 Therear section |51 of .the follower .isy

slightly elevated at its center'to'provide mount.; ing space above thecore therebeneath for attaching means which extend therethrough.y Saidrear elevated section, at each side; is onset. from thelower section ofthe follower.y which rides in the staple leg path to avoid frictionalengagement `A with ,the flanges 50a or flanges 55a. l i

, `1` In theitopof sectionl |51 are transverse aperures which-facilitate mounting of ahandle and stopmemberthereto. n

A handle member |50 is disposed on the follow'- ex-l |55. I'he member|50` comprises a central project throughtheslots inmember |55section|51, kand are riveted to the member |55 thereby. `The front end |00 ofmember |50 is so disposed upon member- |55 that -whenthe front edge ofmember |55 is in Aalinement withffthe front face of the beam magazine,said end abuts the rear upright walls of skirts |00 to arrest furtherinward movement of the' follower to-prevent con'- tact with the stapledrivingvk tool aftermseharging the last staple into the path ofsuchtool.y

YThe handle member |503 may .have haring finger-pieces as shown 'or'these mayzbe otherwise shaped and disposed. I Betweenthe flnger'pieces|54 the end l02 is turned up and rises to a greater t height than thefront end memberisp.

In the rear upturned section |52', there is yineens such as slot. |00for receiving the Vloop |10 of the magazine spring .|1|. The. heightofthe z slot |59 for the spring |1| is sufficient toV maintain thespring 1| above the top of the front stop member |50 fat all times whenthefollower is upon the magazine.

y The-spring |1 isof a conventional clock spring structure save that ithas a narrow loose center end |12^.y The spring |1|iscoiled about aparallelepipedcore |20 which isihollowsto receive a section kof thespringend and also key I0. 'Ihe end |12 of the spring-|1| isof reducedcross sec-` tionvor taperedto be inserted into opposed slots rectangularslots ||1 and ||0;(Figures 2 and 30) |10 and |10inthe rectangular core|20, the coiling of the spring |1| about the core |20 beingas snown inFigure '1, with a section of the spring end l12 reversed to thedirectionof kthe winding ofy the body of the spring. Such reversing ofthe end |12 after its insertion provides suillcient anchoring for thespring |1| against unwinding f At opposed sides of thewings |0, and ||4are to receive a. key l0 on. which is supported a spring core.|20, thekey ||0 comprising asmallend |2| tting into the slot ||8 on onesideofthe housing, a bpcLv |22 (Figures 1 and, 421) trapezoidal in crosssection which is co-ex'tensive with the distance between the -wings ||0and |0 and which .receive the spring core |20, and an extension',y apart |20 for seating in the slot ||1 at one wing of and displacementunder normal'conditions ofy tion |55 thereof closelyr follows theconguration. in cross, section, oi" a staple. Such .front end thehousing and a head |20 which is enlarged and which provides-a means formanipulating the key When the spring |1|-is coiled about the core|20,the core |20.is insertedbetween the wings ||0a=and ||0 in alinementwith the slots. The key-"H0 Vis.A then positioned transversely of the fwings through `thehollow body of said core.

Upon' release of y,the spring from -the means l to hold it in registrywith the slots mentioned, the' spring will instantly.' assert 'atorsional forceto disaline-the core-20 and key.||0 and urge -uponthe-.core and spring theposition illustrated in Figure 1. The corewllltakea position in respect toi-the key with thewallsof the coreparallel 'to the oblique-face of section, I22-V "of, the key" H0. Thisposition of?l theI parts providesj a lock there'' between and' withrespect-iseigiivlxi'gs |13 endl-m whichi prevents thespring |1| 4frombeingA acci` dentally displaced from between the wings, a pozog sitionwhich willbe maintained so long as the spring lasts. The key IIS cannotreadily beremoved because itis dinieult to reposition'the core ofthespring in registry with thev slots ||1 and ||0` with the walls ofthecorefparallel tothe straight yside of the key l I l."4 L'. it is desiredto remove said key v and spring from 'the-'housin'g,

the'follower may-besforoed backwardly until the,

springhas reached a diameter' that it may lbis surrounded by'iasripPiece |00` later'to bede-'- scribed. The S1'1lIpiecev is positioned`thelfeabcut f and the followerreleased?" 'il'he 'tensionV of the springwithin the grip'piece causes tight engagementbetween the'twoallowingforready manip-v ulation'to remove the spring.

' Somediillculty has been hadin'stapling maanchorin combinationwiththe-key Justdescribed provides aA ready' f means ffor replacingy brokensprings-. Extra springs are provided withlor chines with :brokensprln'gli.= '1he type of spring 4o Y without'theif euterfedsfenehored tefollowers 'f and with thebody ofthe springfsentwinedv about a core and:locked thereon withfthe narrow endy |112 disl'iose'd in theslots` |10and |14. Any'sim-` plfmeansofzattaching the spring'to the follower'-`maybe ado'ptediwhere thesprings'aresupplied Y free from the follower.The spring |1| is coiled to the desired degree in thevplace ofmanufacture and in its'wound condition is inserted into @grip piece inhaving@ body from which truly arcuate legs |0| and |02 'extendslightlymorethan ene Yhundred eighty degrees. For conveniencein handlingAthe yoke hasta handle |00 at the outside'the'reof. Because of thelength of the legs':|0| and |02, the spring |1| willbemaincircumstances.It may be displaced therefrom in a'manner hereinafter described. y

' -Whn it is desired toin'sert a new spring inv a stapling deviceptheold spring, spring core, and follower are' removed.y `This is notdimcult1for whenL fa' spring is broken there is. no resistance to theproper alinement.v of the spring core |20,

55 tained in its wound.A conditionunder all normal keyiis and slots H1end in se that Ythe ke'y ||0 may be readily withdrawn. `The new spring#held within the yoke |00 is inserted while heldk in-coiled conditionfbythe legs 1| 0| and |02 and the key ||0 is insertedinto place. The yokeis then pulled rearwardly of the stapling device. A slight pull on thestaple follower will reduce the diameter `of the 'spring and cause theretainer |00 yto'drop away from the spring. Instantly the core 20disalines itself with the key 0 to lock the spring'core |20 and key||9in positionbetween the wings. AThe' follower" |55 ifnot previousiydisposed in the staple magazine may now beinserted therein for use. i 'jStaples are loaded into the devicejinV the usual manner. The initialstepfis to withdrawthe .fol-- lower |55 and allow it to restagainst thehousing.

under the tension of spring |1|.' As many' staples as may be-conveniently placed in the magazine are inserted thereinto `whileleaving roomenough forthe'follower |55. 'I'he follower is then re-Because of theurgefof fspring 99, the beam magazine will Vbe `in a'position Iaway fromfthe base at the front. of the device kand lthestaple driving member |30 will be at itsftopmost posi-k tion because ofthe'urge of spring |5|.' In'such position the device-y is ready. for a`downY strokeA 20 to drivel a staple` through any materialV which may bepositioned upon the anvils 2|, the 'relation of which is adjusted toprovide the particular type of clinch that is desired. -1

Pressure vor a blow on the handle y|4| will move the housing andmagazine against the material to be stapled, -the continuation -of suchpressure or blow dislodging the staple driving` tool from its normalposition in the housing downwardly therein to nrst cause thetool |39 toengagea staple-in the path' and to thereafter advance such staple out ofthe housing with' its legs striking the axis of the two anvil dies,vv tobe deformed inthe particular manner dependent upon the shape of therecess in the anvils and 3" the angular position of such recessesrelativelyto one another.

'I'he material' through which such a staple isL driven will then be heldtogether in 'the particular manner determined'by thev user and in one 40of the manners shown in' Figures 5 to 10, inclusive, or in somemodification thereof.

On release of the hand from`the-i'uindle-` Ill,

the staple driver and the beam and housing thereon rise concurrently totheir uppermost positions, that of -the beam being regulated bytheposition of the riser or 61 to the several steps 5I, 55 or 55, or theunderside ofthev base 20;v ',The

head willV rise to its vuppermost position yunder theurge of spring|5|.- v "f 50 The machine is then ready for further use with cycles ofoperation in the manner just de'- scribed. Y

In Figures l, 32 and 33 is shown a construction embodied in the core andbeam illustrated in Figure i7 adapted to prevent clogging oftheapparatus. The forward end of the inverted channel member 'lilisslotted'as illustratedv at vIllia. Slots |0|c are also provided atintervals and f on opposite sides of vthis member and extend a sum- 50cient amount into the top portion thereof to pro-4 f vide openings fromthe upper side extending into the interior; The slots at theforvard orrejection chute end, while providing openings similar to slots |0| c,also provide a horizontal surface '05 |0|a and an'oblique surfacellb,the Ilatter de iining with the front edge of member 'I5 a'cuttng edge; v

Any' foreign matter entering the magazine can readily fall out throughthe openings lprovided by the slots ||l|c. In the eventy the legs of astaple are slightly deformed they will, "upon'the staple being drivenout through the ejection chute, be straightened by the oblique surfaceIll Ib. If such legs are badlydeformed they will be forced rearwardlyalong the surface |0|a. Upon being sevmovement of said plunger in said'housing v@ra from the bridge of the staple by the lmiami ,"section," a'vhousing "thereabout vand luiving". walls, i0

and means yfor moving said walls relativelyto saidk driving member: y lo 2. A staple driving head comprising ayhousin'g having Walls, means`for adjusting saidwalls relatively to one anotherfand"astapledivingplungl5 l er in'said housing,fsaid staple driving plunger-eni 4Swingsaid wa1ladjustment-means to" limit fthe 3. `Ina'staple driving device,a housing, ja-staple driving plunger reciprocablejin said housing', 20 amagazine to which said housing isanchored, aspringin said staple drivingplunger, anda guide'. member 'for said 'spring 'comprising al flatstripof material disposed `transversely offf said y magazineandprojecting vertically V-frorn""said 25 magazine, said spring beingsupportedl atfg'its bottom bycsaid -guideA ymember Vand v extendingupwardlytherefrom."

4. In a staple driving device, ahousing, a f I magazine extendingthereintofa staplefollowe' 30 on said beam magaziney'a. spring in-saidhousing for actuating said follower, and` af handle member for saidfollotverQsalid handle member havingupturn'edends, one of said upturnedendsprvidving an Yabutment. for engaging said'lhousing'toj ,35

provide A-a stopfor said followerland the other upturned end `"providinganfanchor for-l said spring,said springf'being securedto said anchor.

5. In combination,- a staplingdevice comprising a housing, a magazinefollower spring'in said 450 housing, a beam magazine onwhich-saidhousjing is secured, a follower in said'ma'gazine;` a. handlemember for saidf follower, sections' vo1' said"7 member providing"flater-'ally disposedi'ilngr pieces, other' sections-of 'said memberbeing up: fiof turned',` one to provide asto'p for said-follower, f

, and the other anaaichor` fora magazine' followf y '1 i ing ahou'singabeam 3'magazine on wl'iich said .50

and amagazme follower attached-to sjaidfsprmg, w

said key being' trapezoidalin cross section, said 'spring being insertedacross the-hollow portion of said core and;being wound to produce'l atenf-y y sion Idisplacing said core"l relatively"tos`aid key whendisposed in said housing. 1 "65 8; In a staple-'drivingvdevice, yabfase,a beam, a member depen-dingthrou'gh vsaidV base, means secured tosaidbase :and movablel transn versely of the-path'cf movemlentof said memnber for determining the relative-"angular posi-i 70 l tion of said andbase; y 9.` In a stapling machine, .al basefa beamI .means for pivoting'said'mbeamvvtomsaidj base, a,

'member on said pivoting meansv and'extending through said base, asecond member pivoted to 7l saii'base..snd71aovab1e thereof in `theplaneof-said base andinto vthe path 'of said rst memberisteps onv saidsecond and versely movable membercooperating with said first member-'fordeterminingtheangular separation of said beam from said base. and means'for locking' saidv laterally movable second memberinselectedpositions.` :Y 1- I 10. In a stapling device, a'houlsing,` atriangular plunger in said housing,v a staple driving member on one ofthe sides of said p1unger. .and-' means for the t between saidplungerand 11. In a stapling device. a magazine for staples comprising inverted1U.shaped member, a core; upon which staples ride imposed yupon saidmember. and .guide plates .associated with` said member and spaced fromsaid coreto guide staples thereon, staple guiding means at one end of`said magazine and forming therewithr an ejection chute through'whichmstapl are driven from said j seid. .member being provided alongthe length thereof `with spaced slots ,providingopenings from saidinto-theinteriorofsaid member.y l: Y

- 12. In a stapling device, a magazine for stapl comprising an invertedU-shaped member, acore upon whichstaples-rideimposed upon saidmember,and guide platesassociated with said memspaced from said corefto guidestaples thereon, staple guiding means atfone end otrssaid magazine andformingtherewith an ejection chute .through which staples are drivenfrom said 'saidH member at the ejection chute nd thereof being slottedto provide mammal and oblique surfaces, said surfaces being related tosaid magazine and ejection. chute to guide bent legs of staples intosaid chute and to cooperate in severing badly bent legs from thebridgeaand to permit dischargethereoi after severing... y ww 1 3. Abeanrmagazine for a stapling device coma core of laminated material, a;riserfor regulating angular movement of the .beam and inserted betweenthelaminations of such material, and a member enclosing sectionsoi saidcore to provide a staple path therealong. i M A beam magazine foraustapling device comprising .a core of. laminated material, -en -riserfor regulating angular movement of thejbeamf and inserted between thelaminations of suchmatef rial, a member-.enclosing sections of.-saidcore to provide a staple path therealong, and fastening means forsecuring the laminated material, riser and said enclosingmember inassembly.

l5. In a stapling device, a magazine forstaples, a housing associatedwith said magazine and having walls, said housing and said magazinedeiining an ejection chute for staples, a driving tool reciprocable insaidhousing and chute, said tool being guided by a wall of Vsaidhousing, anda member secured to said wall and engaging said tool to4maintain the same in slidable contact with saidwall.

16. In a stapling device, amagazine for staples comprising a channelmember, a core within said member. and spaced from the sides thereof,and a housing associated with said magazine and forming therewith.l anvejectionI chute through which staples are driven from said magazine,said member having ears projecting therebelow,

said housing being secured to said ears.

1' 1 In 'a stapling machine, a magazine, staple .anew-lo driving 'areciprocal plung-l er,...a housing for said mechanism, said plungerbelngreciprocablepin said housing, said housing comprising a plurality-of flat enclosing. walls.

the inner,y surfacesV ofwwhich v.provide guiding .means forsaldplunger,one. of;` said-walls having its edgeispaceflfrom the edge ofan adjacentwall. and.I .adjustable Y take-up means associated .with

said spacededges operable to relatively adjust said walls to provide anfor saidplunger.' 5,.;

18. In afstapllng machine, a'magazine, staple drivingmechanismincludin'g a reciprocal plungadequate guide support er, meansfor feeding .staples from said magazine 1 to said mechanism including la coiled spring., a housing fcrrsaid mechanism and said Sprin8.saidplunger being reciprocablegin said housing, said housing comprisingapluralitygoi dat enclosing walls,-the inner surfaces .of which provideguiding means for said plunger. one of said walls hav,-v ing its edgespaced from the'edge ofanadiacent wall, said edges being provided vwithprojecting wings, said wings ,being spaced and formed to provide ahousing for said spring,and adjustable take-up means extending betweensaid wings and operableV to relatively adjust vsaid walls to provideadequate guide support for said plunger:

1,9. In a staplingmachine, a beam .magazine staple.. driving mechanismnassociated with said .magazine and vincluding a reciprocal plunger.

means for feeding staples from said magazine to said mechanism,including a coiled spring, `and. a housing for said mechanism. and saidspring, said `housing lower skirts secured to said magazine, said skirtshaving an upper portion providing anabutment for said staple feedingmeans. said housing having oblique walls for guiding said plunger,saidoblique wallsvbeingvfprovided with projecting wings spaced to form a.support for saidspring...

,20.In a stapling machine, a beam magazine, staple drivingmechanism,associated with said magazine and including a reciprocal z plunger,

mean; for feeding staples from said magazine to said mechanism includinga. coiledv spring, and

ahousing for said. mechanism and said spring,

said housing-being provided withspaced lower and upper rearwardlyextending` sections,v said lower vsection-comprising spaced skirtsVsecured tossici magazine, andvsaidlupper section corn.- prising spacedwings between which said spring is Supported.. I 'f y 21. In astaplingmachine, a base, a magazine beam,ya pivot for movably mountingsaid beam von saidfbase, a riser member movably mounted you said pivotand adaptedto normally maintain said beam -in a predeterminedposition,land-a spring associated with said member to urge-the vsamein. adrectionrfadapted to move said beam 4away from said base,-saidmember'having a portion engageable with said base to limitits motion insaid direction. y f

V22. In a stapling machinaamagazlne, a housing positioned on-saidmagazine, a staple4` driving .plunger reciprocable in said housing, .aspring `for said plunger, a guide member for said spring,

said guide member having a lower cross arm provided with tongues, saidmagazine having opposed notches within which said tongues ,arepositioned ltn 'support said member, saidV member having a stem fittingthe same.

' PsNxoNn. f

within said Spring to guide A CERTIFICATE OF CORRECTION.

Patent No. 27,087,779. Y 51113720, 19:5?,

WILLIAM G. PANKONIN.

It is hereby certified that error appears in the printed specificationof thel above numbered patent requiring correction as follows: Page 1, Ysecond column, line ll, for the word "plunger" read tool and for"member" read plunger; andv that the said Letters Patent should .be readwith these' corrections therein that the same may conform to the' recordofi the case in the Patent Office. v I

Signed and sealed this 31st dayof August, A. D, 1937.

Leslie Frazer (Seal.) 4 Y 4,' Acting Commissioner of Pz11.ten'c;s.` i

